From: Tim Deegan <tim@xen.org>
To: Olaf Hering <olaf@aepfle.de>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH] mem_event: use wait queue when ring is full
Date: Thu, 15 Dec 2011 12:43:29 +0000 [thread overview]
Message-ID: <20111215124329.GD4274@ocelot.phlegethon.org> (raw)
In-Reply-To: <b25b2bcc2c6a987086bf.1323458635@probook.site>
Hi,
At 20:23 +0100 on 09 Dec (1323462235), Olaf Hering wrote:
> mem_event: use wait queue when ring is full
>
> This change is based on an idea/patch from Adin Scannell.
>
> If the ring is full, put the current vcpu to sleep if it belongs to the
> target domain. The wakeup happens in the p2m_*_resume functions. Wakeup
> will take the number of free slots into account.
>
> A request from foreign domain has to succeed once a slot was claimed
> because such vcpus can not sleep.
>
> This change fixes also a bug in p2m_mem_paging_drop_page(). Up to now a
> full ring will lead to harmless inconsistency in the pager.
[...]
> Signed-off-by: Olaf Hering <olaf@aepfle.de>
This patch is OK by me as it stands, so
Acked-by: Tim Deegan <tim@xen.org>
but I'll wait for an explicit ack from Andres or Adin before applying
it.
Cheers,
Tim.
next prev parent reply other threads:[~2011-12-15 12:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-09 19:23 [PATCH] mem_event: use wait queue when ring is full Olaf Hering
2011-12-15 12:43 ` Tim Deegan [this message]
2011-12-15 13:15 ` Olaf Hering
[not found] <mailman.4853.1324294828.12970.xen-devel@lists.xensource.com>
2012-01-11 18:02 ` Andres Lagar-Cavilla
2012-01-12 13:59 ` Olaf Hering
2012-01-12 16:11 ` Andres Lagar-Cavilla
2012-01-12 17:50 ` Adin Scannell
[not found] ` <B28ADCC9-CC5A-479D-8A7C-38FF4DB78A55@gridcentric.ca>
2012-01-12 19:22 ` Andres Lagar-Cavilla
-- strict thread matches above, loose matches on Subject: below --
2011-12-19 11:39 Olaf Hering
2011-12-22 11:27 ` Tim Deegan
[not found] <mailman.4227.1323785898.12970.xen-devel@lists.xensource.com>
2011-12-15 14:56 ` Andres Lagar-Cavilla
2011-12-16 16:40 ` Olaf Hering
2011-12-16 17:04 ` Andres Lagar-Cavilla
2011-12-16 17:33 ` Olaf Hering
[not found] <mailman.3873.1323460242.12970.xen-devel@lists.xensource.com>
2011-12-10 5:22 ` Andres Lagar-Cavilla
2011-12-13 13:40 ` Olaf Hering
[not found] <mailman.3332.1323083995.12970.xen-devel@lists.xensource.com>
2011-12-05 15:45 ` Andres Lagar-Cavilla
2011-12-05 16:20 ` Olaf Hering
2011-12-05 16:34 ` Andres Lagar-Cavilla
2011-12-07 13:20 ` Olaf Hering
2011-12-07 16:27 ` Andres Lagar-Cavilla
2011-12-05 11:19 Olaf Hering
2011-12-05 11:33 ` Olaf Hering
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20111215124329.GD4274@ocelot.phlegethon.org \
--to=tim@xen.org \
--cc=olaf@aepfle.de \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).